⚠️ Experimental endpoint — not yet a stable contract. This resource ships as experimental / beta. While experimental, its schema and behaviour may change without a version bump — including breaking changes within v2.0 itself. Anyone consuming it does so for evaluation only, or by coordinating adoption with their account manager so changes can be sequenced with them. It graduates to a stable, version-locked contract (where the normal breaking-change rules apply) only when this experimental notice is removed.

Create a future scheduled discount change for a partner with corporate billing enabled. Invalid fields or conditional revert combinations return 422 with API field names. Overlapping periods return 409 with message Another scheduled discount change already covers this period. Disabled corporate billing returns 409. The schedule does not change discounts captured for existing sessions.

Required permission: Partners.update on the visible parent partner. Missing, out-of-scope or wrong-parent identifiers return 404; a visible partner without edit permission returns 403.